Our products include drill collar, drill pipe, heavy weight drill pipe, stabilizer, subs, hole opener, roller reamer, casing scraper, key seat reamer, kelly valve, full opening safety valve, ft type drop-in check valve, fj type-arrow back pressurevalve, inside bop, float valve sub, by pass valve, cup tester, wear sub, circulating sub, cross over sub, reduce sub, saver sub, lift sub, different of drilling jar, fishing jar, shock absorber, bumper jar, oil jar, bumper sub, jar intensifiers. We also manufacture bowen 150, bowen70, bowen 20, overshot and spear, bowen 150, bowen70, bowen 20, overshot and spear, also different king of oilfield fishing tools, fishing magnet, milling tools(different kind of mill shoe and tap), internal casing cutter, external casing cutter, marine or mechanical, hydraulic bucking unit, downhole motor and tester, jar tester.
Made of AISI4145H alloy steel, drill collar mainly used between the dill pipe and drill head and connected by conversion connector so that they can provide the pressure and weighting to dill head , in order to make the dill head to keep right trace . Api and iso standed
Drill collar is mainly used to provide bit weight to drill bit so that drill pipe is in tension. Especially drill collar can keep drill bit centralized and hole track by large rigidity. MS brand drill collar are manufactured strictly from API Spec7-1 and SY5411 standard.
We deals in the following Chemicals :- Drilling Starch Bentonite Powder, Bentonite Lumps, Bentonite Granules, Bentonite Clay Quartz / Silica Powder, Quartz / Silica Lumps, Quartz / Silica Granules, Quartz / Silica Grits Mica Powder, Mica Flakes, Mica Blocks, Mica Sheets Dolomite Powder Barite Powder, Barite Ore Hematite / Iron Oxide Powder, Iron Oxide ( Ferric Oxide ) Ilmenite (Synthetic Rutile) Fly Ash Powder Alumina Silica ( Cenosphere ) Powder Calcium Carbonate Powder Magnetite, Cellulose Fibers, Cellophane Flakes, Walnut Shells
We deals in the following Chemicals :- Drilling Polymer Bentonite Powder, Bentonite Lumps, Bentonite Granules, Bentonite Clay Quartz / Silica Powder, Quartz / Silica Lumps, Quartz / Silica Granules, Quartz / Silica Grits Mica Powder, Mica Flakes, Mica Blocks, Mica Sheets Dolomite Powder Barite Powder, Barite Ore Hematite / Iron Oxide Powder, Iron Oxide ( Ferric Oxide ) Ilmenite (Synthetic Rutile) Fly Ash Powder Alumina Silica ( Cenosphere ) Powder Calcium Carbonate Powder Magnetite, Cellulose Fibers, Cellophane Flakes, Walnut Shells
We deals in the following Chemicals :- Drilling Detergent Bentonite Powder, Bentonite Lumps, Bentonite Granules, Bentonite Clay Quartz / Silica Powder, Quartz / Silica Lumps, Quartz / Silica Granules, Quartz / Silica Grits Mica Powder, Mica Flakes, Mica Blocks, Mica Sheets Dolomite Powder Barite Powder, Barite Ore Hematite / Iron Oxide Powder, Iron Oxide ( Ferric Oxide ) Ilmenite (Synthetic Rutile) Fly Ash Powder Alumina Silica ( Cenosphere ) Powder Calcium Carbonate Powder Magnetite, Cellulose Fibers, Cellophane Flakes, Walnut Shells
1. Hardness range of 285 to 341 BHN and a charpy impact value of 40ft/lbs are guaranteed for evenly distributed 16 points in any cross sections at room temperature. 2. Connections as phosphate coated father machining to protect the threads from corrosive elements and to prevent galling upon initial make -up. Thread roots are cold rolled on API and H0-90 connections. 3. Pressed steel thread protectors are supplied to all drill collar that are equipped with standard connections. 4. Manufactured strictly according to API standard. 5. Widely used in oil, gas, HDD and geothermal field.
Drill Collars are integral heavy-wall joints that are manufactured from a solid bar of modified alloy steel. The solid bars are quenched and tempered to obtain the required mechanical properties, then trepanned, drifted and threaded. All drill collars are heat-treated with hardness within 285 to 341 BHN, which are guaranteed one inch below the surface of the pipe. Lake Petroleum could supply slick type drill collar, spiral drill collar and Non-magnetic drill collar (NMDC).
Drill Collars are integral heavy-wall joints that are manufactured from a solid bar of modified alloy steel. The solid bars are quenched and tempered to obtain the required mechanical properties, then trepanned, drifted and threaded. All drill collars are heat-treated with hardness within 285 to 341 BHN, which are guaranteed one inch below the surface of the pipe. Lake Petroleum could supply slick type drill collar, spiral drill collar and Non-magnetic drill collar (NMDC).
Drill Collars are integral heavy-wall joints that are manufactured from a solid bar of modified alloy steel. The solid bars are quenched and tempered to obtain the required mechanical properties, then trepanned, drifted and threaded. All drill collars are heat-treated with hardness within 285 to 341 BHN, which are guaranteed one inch below the surface of the pipe. Lake Petroleum could supply slick type drill collar, spiral drill collar and Non-magnetic drill collar (NMDC).
We supply slick drill collars, spiral drill collars and non-magnetic drill collars; their sizes are from 3-1/8 to 11 inches. Besides the drill collars in the table below, we can supply other drill collars at customers' request Materials: Drill collars are manufactured from AISI 4145H modified steel, and are supplied in the "as rolled" surface finish condition. Alternative surface finishes are available. Trepanning and Heat Treatment: Drill collars are trepanned and drifted to API Spec 7-1. Full-length heat-treatment processes ensure that mechanical properties meet or exceed API Spec 7-1 requirements. A hardness range of 285-341, Brinell hardness and Charpy "V" notch minimum impact strength of 40 ft-lb at 70 F are guaranteed one inch below the surface. Traceability: Drill collar material and process traceability are maintained from receipt of the mill's certified raw material to completion of manufacturing. Serial numbers are die stamped on bar bodies. Rigid Inspection Procedures: We inspect all our drill collars to ensure compliance with API SPEC 7-1 standards. These inspections include visual dimensional checks as well as ultrasonic inspections over the entire body of the drill collar. Cold Rolling: Drill collar thread roots, as well as elevator recess upper radius, are cold-rolled. Cold rolling creates a compressive recess upper radius stress condition that increases fatigue life by minimizing crack initiation. Phosphate-coated or Copper Plating: All connections are phosphate-coated or copper plated to improve resistance to corrosion. Slip Groove, Elevator Groove and Size: Lake offers optional slip and elevator recesses to improve handling efficiency and safety. Unless otherwise specified, slip and elevator recesses are machined in compliance with API spec 7-1 guidelines. Thread Protectors: Our company offers steel, cast steel and plastic steel thread protectors for its drill stem products.
Quick Details Condition: New Warranty: 1.5 years Applicable Industries: Energy & Mining Local Service Location: None Showroom Location: None Video outgoing-inspection: Provided Machinery Test Report: Provided Marketing Type: Hot Product 2019 Place of Origin: Shandong, China Brand Name: Lake Petro Type: Drill Collar Machine Type: Drilling Tool Certification: API Material: Stainless Steel Processing Type: Forging Use: Well Drilling Product name: Non Magnetic Drill Collar Application: Oil Field Usage: Hole Drilling Size: API Standard Size Standard: API 7-1 Thread: API 5B
Quick Details Condition: New Warranty: 1.5 years Applicable Industries: Energy & Mining Local Service Location: None Showroom Location: None Video outgoing-inspection: Provided Machinery Test Report: Provided Marketing Type: Hot Product 2019 Place of Origin: Shandong, China Brand Name: Lake Petro Type: Drill Collar Machine Type: Drilling Tool Certification: API Material: Stainless Steel Processing Type: Forging Use: Well Drilling Product name: Non Magnetic Drill Collar Application: Oil Field Usage: Hole Drilling Size: API Standard Size Standard: API 7-1 Thread: API 5B Length: 9450 Supply Ability Supply Ability: 500 Piece/Pieces per Month Packaging & Delivery Packaging Details Standard Export Package Port Qingdao Or Tianjin Picture Example: package-img Lead Time : Quantity(Pieces) 1 - 10 >10 Est. Time(days) 40 To be negotiated
The Spiral Drill Collar of Lake is made from AISI 4145H modified alloy steel, and completely meets the requirement of API Spec 7-1 and SY/T5144 Standard. It is a kind of drill collar which adds three dextrogyrate spiral groove on the outer circle of ordinary drill collar when processing, and the purpose is to reduce the area of contact and friction with the well wall, which can effectively prevent the pressure sticking. The single weight of the spiral drill collar is round about 4% lighter than the ordinary drill collar with the same specification, and the shape and thread of the both ends are the same with the drill collar.
API 7-1 drilling collar is one of the most important product of hexin oil drillings which mainly used to provide bit weight to drill so that drill pipe is in tension. Especially drill collar can keep drill bit centralized and hole track by large rigidity. GANG GONG brand drill collars are manufactured strictly from API Spec7-1 standard.
We supply slick drill collars, spiral drill collars and non-magnetic drill collars; their sizes are from 3-1/8 to 11 inches. Besides the drill collars in the table below, we can supply other drill collars at customers' request. Materials: Drill collars are manufactured from AISI 4145H modified steel, and are supplied in the "as rolled" surface finish condition. Alternative surface finishes are available. Trepanning and Heat Treatment: Drill collars are trepanned and drifted to API Spec 7-1. Full-length heat-treatment processes ensure that mechanical properties meet or exceed API Spec 7-1 requirements. A hardness range of 285-341, Brinell hardness and Charpy "V" notch minimum impact strength of 40 ft-lb at 70 F are guaranteed one inch below the surface. Traceability: Drill collar material and process traceability are maintained from receipt of the mill's certified raw material to completion of manufacturing. Serial numbers are die stamped on bar bodies. Rigid Inspection Procedures: We inspect all our drill collars to ensure compliance with API SPEC 7-1 standards. These inspections include visual dimensional checks as well as ultrasonic inspections over the entire body of the drill collar. Cold Rolling: Drill collar thread roots, as well as elevator recess upper radius, are cold-rolled. Cold rolling creates a compressive recess upper radius stress condition that increases fatigue life by minimizing crack initiation. Phosphate-coated or Copper Plating: All connections are phosphate-coated or copper plated to improve resistance to corrosion. Slip Groove, Elevator Groove and Size: Lake offers optional slip and elevator recesses to improve handling efficiency and safety. Unless otherwise specified, slip and elevator recesses are machined in compliance with API spec 7-1 guidelines. Thread Protectors: Our company offers steel, cast steel and plastic steel thread protectors for its drill stem products.
We supply slick drill collars, spiral drill collars and non-magnetic drill collars; their sizes are from 3-1/8 to 11 inches. Besides the drill collars in the table below, we can supply other drill collars at customers' request. Materials: Drill collars are manufactured from AISI 4145H modified steel, and are supplied in the "as rolled" surface finish condition. Alternative surface finishes are available. Trepanning and Heat Treatment: Drill collars are trepanned and drifted to API Spec 7-1. Full-length heat-treatment processes ensure that mechanical properties meet or exceed API Spec 7-1 requirements. A hardness range of 285-341, Brinell hardness and Charpy "V" notch minimum impact strength of 40 ft-lb at 70 F are guaranteed one inch below the surface. Traceability: Drill collar material and process traceability are maintained from receipt of the mill's certified raw material to completion of manufacturing. Serial numbers are die stamped on bar bodies. Rigid Inspection Procedures: We inspect all our drill collars to ensure compliance with API SPEC 7-1 standards. These inspections include visual dimensional checks as well as ultrasonic inspections over the entire body of the drill collar. Cold Rolling: Drill collar thread roots, as well as elevator recess upper radius, are cold-rolled. Cold rolling creates a compressive recess upper radius stress condition that increases fatigue life by minimizing crack initiation. Phosphate-coated or Copper Plating: All connections are phosphate-coated or copper plated to improve resistance to corrosion. Slip Groove, Elevator Groove and Size: Lake offers optional slip and elevator recesses to improve handling efficiency and safety. Unless otherwise specified, slip and elevator recesses are machined in compliance with API spec 7-1 guidelines. Thread Protectors: Our company offers steel, cast steel and plastic steel thread protectors for its drill stem products.
We supply slick drill collars, spiral drill collars and non-magnetic drill collars; their sizes are from 3-1/8 to 11 inches. Besides the drill collars in the table below, we can supply other drill collars at customers' request. Materials: Drill collars are manufactured from AISI 4145H modified steel, and are supplied in the "as rolled" surface finish condition. Alternative surface finishes are available. Trepanning and Heat Treatment: Drill collars are trepanned and drifted to API Spec 7-1. Full-length heat-treatment processes ensure that mechanical properties meet or exceed API Spec 7-1 requirements. A hardness range of 285-341, Brinell hardness and Charpy "V" notch minimum impact strength of 40 ft-lb at 70 F are guaranteed one inch below the surface. Traceability: Drill collar material and process traceability are maintained from receipt of the mill's certified raw material to completion of manufacturing. Serial numbers are die stamped on bar bodies. Rigid Inspection Procedures: We inspect all our drill collars to ensure compliance with API SPEC 7-1 standards. These inspections include visual dimensional checks as well as ultrasonic inspections over the entire body of the drill collar. Cold Rolling: Drill collar thread roots, as well as elevator recess upper radius, are cold-rolled. Cold rolling creates a compressive recess upper radius stress condition that increases fatigue life by minimizing crack initiation. Phosphate-coated or Copper Plating: All connections are phosphate-coated or copper plated to improve resistance to corrosion. Slip Groove, Elevator Groove and Size: Lake offers optional slip and elevator recesses to improve handling efficiency and safety. Unless otherwise specified, slip and elevator recesses are machined in compliance with API spec 7-1 guidelines. Thread Protectors: Our company offers steel, cast steel and plastic steel thread protectors for its drill stem products.
We supply slick drill collars, spiral drill collars and non-magnetic drill collars; their sizes are from 3-1/8 to 11 inches. Besides the drill collars in the table below, we can supply other drill collars at customers' request. Materials: Drill collars are manufactured from AISI 4145H modified steel, and are supplied in the "as rolled" surface finish condition. Alternative surface finishes are available. Trepanning and Heat Treatment: Drill collars are trepanned and drifted to API Spec 7-1. Full-length heat-treatment processes ensure that mechanical properties meet or exceed API Spec 7-1 requirements. A hardness range of 285-341, Brinell hardness and Charpy "V" notch minimum impact strength of 40 ft-lb at 70 F are guaranteed one inch below the surface. Traceability: Drill collar material and process traceability are maintained from receipt of the mill's certified raw material to completion of manufacturing. Serial numbers are die stamped on bar bodies. Rigid Inspection Procedures: We inspect all our drill collars to ensure compliance with API SPEC 7-1 standards. These inspections include visual dimensional checks as well as ultrasonic inspections over the entire body of the drill collar. Cold Rolling: Drill collar thread roots, as well as elevator recess upper radius, are cold-rolled. Cold rolling creates a compressive recess upper radius stress condition that increases fatigue life by minimizing crack initiation. Phosphate-coated or Copper Plating: All connections are phosphate-coated or copper plated to improve resistance to corrosion. Slip Groove, Elevator Groove and Size: Lake offers optional slip and elevator recesses to improve handling efficiency and safety. Unless otherwise specified, slip and elevator recesses are machined in compliance with API spec 7-1 guidelines. Thread Protectors: Our company offers steel, cast steel and plastic steel thread protectors for its drill stem products.
API P530 Non-magnetic Drill Collar Materials: The non-magnetic products of Dongying Lake is made from high-class low carbon stainless steel, and completely meets the requirement of API Spec 7-1 and SY/T5144 Standard. It has good low magnetic permeability, high mechanical property and perfect enduring intergranular corrosion cracking performance. It is mainly used for the inspection in the process of petroleum drilling, and the structure is the same with the ordinary drill collar. Trepanning and Heat Treatment: Drill collars are trepanned and drifted to API Spec 7-1. Full-length heat-treatment processes ensure that mechanical properties meet or exceed API Spec 7-1 requirements. A hardness range of 285-341, Brinell hardness and Charpy "V" notch minimum impact strength of 40 ft-lb at 70 F are guaranteed one inch below the surface. Traceability: Drill collar material and process traceability are maintained from receipt of the mill's certified raw material to completion of manufacturing. Serial numbers are die stamped on bar bodies. Rigid Inspection Procedures: We inspect all our drill collars to ensure compliance with API SPEC 7-1 standards. These inspections include visual dimensional checks as well as ultrasonic inspections over the entire body of the drill collar. Cold Rolling: Drill collar thread roots, as well as elevator recess upper radius, are cold-rolled. Cold rolling creates a compressive recess upper radius stress condition that increases fatigue life by minimizing crack initiation. Phosphate-coated or Copper Plating: All connections are phosphate-coated or copper plated to improve resistance to corrosion.
