Drilling Rig Pipes for Water Well and Mining& Oilfield

• After-sales Service: Yes
• Warranty: 1year
• Manufacturing Process: Forging
• Surface Treatment: Galvanized
• Operation Pressure: Downhole Pressure
• Material: Carbon Steel/Aluminium Alloy
• Model NO.: GP-DT-001
• Certificate: API
• Usage: Mining & Oilfield
• Size: 2-3/8′′ -6-3/8′′
• Length: R1/R2/R3
• Transport Package: Wooden Box
• Specification: casing size
• Trademark: Great Petro
• Origin: China
• HS Code: 7304231000
• Production Capacity: 50000tons/Year

Product Description

 

Our Advantages

This large channel allows fluid to flow freely as the packer is run, recovered, and circulated, greatly reducing cartridge friction and avoiding ball-tooth collisions. The packer can be used in high pressure Wells where a hydraulic anchor can effectively prevent the packer from going up. At the same time, the pressure also acts on the balance piston, which moves down against the center pipe and the seal sleeve. This principle eliminates excess set load and keeps the packer's bypass balance channel closed.

 Characteristics

1, can be safely set in all levels of casing;

2, reliable sealing system, in the operation can withstand the pressure difference up and down;

3, ground control bypass channel and pressure balance valve;

4, balance piston structure to strengthen the stability of the tool under pressure;

5. Automatic J-type device can easily achieve setting and unsealing, and can be set several times after entering the well;

6. Lifting the tubing will first open the bypass valve to balance the pressure, to ensure the safety of unsealing operation;

7, can withstand high pressure, 7 "and below specifications can withstand up to 70MPa (10000psi) pressure difference.

Iv. Specifications and models
 

Product Description

In oilfield drilling engineering, oil drill pipe is the main component connecting ground rotation system, lifting system and circulation system with drill collar and drill bit. Through these components, the rotary wheel drives the drill bit to rotate, the big hook drives the drill bit to lift, and the mud is sent to the bottom of the hole to form circulation, so as to realize the drill bit breaking rock layer and continuous drilling.
Great Petro anti-sulfur drill pipe is a special drill pipe independently developed by Great Petro to meet the needs of oil and gas exploration and drilling in areas with sulfur and high sulfur content, which has the stress corrosion resistance of hydrogen sulfide.
Product advantage
On the basis of the first generation of DT-S 95 and DT-S 105 antisulfur drill pipe suitable for use in moderate H2S corrosion environment, by optimizing the chemical composition of materials and heat treatment process, The second generation of DT-SS 75, DT-SS 95 and DT-SS 105 anti-sulfur drill pipe suitable for use in severe H2S corrosion environment has been developed. The performance indexes of the SS series of anti-sulfur drill pipe meet the requirements of IRP1.8, NACE MR0175 and ISO15156 standards.
Product specification
Product size: Covers all API standards from 2-3/8 "to 6-5/8"
Steel grade: DT-S 75, DT-S 95, DT-S 95, DT-S 105

Product Parameters

 

		DT-S 75,	DT-S 95	DT-S 105	DT-SS 75	DT-SS  95	DT-SS 105
drill pipe	yield strength(MPa)	517-654	654-758	723-827	517-654	654-758	723-827
	Tensile Strength(MPa)	654-792	723-896	792-965	654-792	723-896	792-965
	ballistic work(J)3/4size,-20ºC	≥70	≥80	≥80	≥70	≥80	≥80
	Maximum single value of hardness(HRC)	24	27	29	24	27	29
	SSC Test	70%SMYS;Method A;720h			85%SMYS;Method A;720h
connection	yield strength(MPa)	758-861	758-861	758-861	758-861	758-861	758-861
	Tensile Strength(MPa)	861-999	861-999	861-999	861-999	861-999	861-999
	ballistic work(J)3/4size,-20ºC	≥89	≥89	≥89	≥89	≥89	≥89
	Maximum single value of hardness(HRC)	32	32	32	32	32	32
	SSC Test	-	-	-	65%SMYS;Method A;720h

Size		OD		WEIGHT		THICKNESS		RSC type	Steel grade	Thickening type
Size 1	Size 2
in	lb/ft	inch	mm	lb/ft	kg/m	in	mm	/	/	/
2 3/8	6.65	2.375	60.32	6.26	9.33	0.280	7.11	NC26	E, X, G	EU
2 7/8	10.40	2.875	73.02	9.72	14.47	0.362	9.19	NC31	E, X, G, S	EU
3 1/2	13.30	3.500	88.90	12.31	18.34	0.368	9.35	NC38	E, X, G, S	EU
	15.50	3.500	88.90	14.63	21.79	0.449	11.40	NC38, NC40	E, X, G, S	EU
4	14.00	4.000	101.60	12.93	19.27	0.330	8.38	NC40, NC46	E, X, G, S	EU, IU
4 1/2	16.60	4.500	114.30	14.98	22.32	0.337	8.56	NC46, NC50	E, X, G, S	EU, IEU
	20.00	4.500	114.30	18.69	27.84	0.430	10.92	NC46, NC50	E, X, G, S	EU, IEU
5	19.50	5.000	127.00	17.93	26.70	0.362	9.19	NC50, 5 1/2 FH	E, X, G, S	IEU
	25.60	5.000	127.00	24.03	35.80	0.500	12.70	NC50, 5 1/2 FH	E, X, G, S	IEU
5 1/2	21.90	5.500	139.70	19.81	29.52	0.361	9.17	5 1/2 FH	E, X, G, S	IEU
	24.70	5.500	139.70	22.54	33.57	0.415	10.54	5 1/2 FH	E, X, G, S	IEU
6 5/8	25.20	6.625	168.28	22.19	33.04	0.330	8.38	6 5/8 FH	E, X, G, S	IEU
	27.70	6.625	168.28	24.22	36.06	0.362	9.19	6 5/8 FH	E, X, G, S	IEU

Packaging & Shipping

The packer is designed for a range of casing sizes from 4 1/2 "to 16" and features a large diameter, pressure-balancing valve that can be controlled at surface.