Throw-Type Back Pressure Valve Type HY

The throw-type back pressure valve type HY is an internal blowout preventer. When blowout is going to happen, the Kelly rod should be removed immediately and the back pressure valve assembly should be put into the water hole and then pumped downward to the required place. Thus, the blowout can be prevented.

Specification Series and Performance Parameters

Type	Back Pressure Sub Assembly		Landing Sub			Connection API
	O.D. mm (in.)	I.D. mm (in.)	O.D. mm (in.)	I.D. mm (in.)	Length mm (in.)
HY46	53(2 1/16)	22 (7/8)	121.5(4 13/16)	54(2 1/8)	595 (23.43)	NC38
HY50	53(2 1/16)	22 (7/8)	127.5(5)	54(2 1/8)	595 (23.43)	NC38
HY62	84(3 5/16)	30 (1 3/16)	159.5(6 5/16)	86(3 3/8)	646 (25.43)	NC50
HY62B	65(2 9/16)	35 (1 3/8)	159.5(6 5/16)	67(2 5/8)	646 (25.43)	NC50
HY62C	80(3 1/8)	30 (1 3/16)	159.5(6 5/16)	81(3 3/16)	646 (25.43)	NC46
HY62D	66(2 5/8)	30 (1 3/16)	159.5(6 5/16)	68(2 11/16)	646 (25.43)	NC46
HY70	84(3 5/16)	30 (1 3/16)	159.5(6 5/16)	86(3 3/8)	646 (25.43)	NC50

http://www.oil-equipment-china.com/pid11499833/Throw-Type+Back+Pressure+Valve+Type+HY.htm

Arrow Back-Pressure Valve Type JF

The arrow back-pressure valve type JF is a sort of pipe inside blowout preventer. It adopts arrow valve structure. It's directly connected to drill stem, and can prevent high-pressure oil stream from blowing out from drilling tool.

Specification Series and Performance Parameters

Type	O.D. mm (in.)	I.D. mm (in.)	Overall Length mm (in.)	Connection API
JF86	86 (3 3/8)	34 (1 5/16)	400 (15.75)	NC26
JF105	105 (4 1/8)	45 (1 3/4)	400 (15.75)	NC31
JF121	121 (4 3/4)	57 (2 1/4)	500 (19.69)	NC38
JF152	152 (6)	74 (2 15/16)	500 (19.69)	NC46
JF162	162 (6 3/8)	83 (3 1/4)	550 (21.65)	NC50
JF184	184 (7 1/4)	83 (3 1/4)	550 (21.65)	5 1/2FH

http://www.oil-equipment-china.com/pid11499832/Arrow+Back-Pressure+Valve+Type+JF.htm

Casing Scraper Type GGQ

The casing scraper type GGQ is an internal tool used for removing obstructions or foreign material from inside the walls of casing, such as cement, rust, mud, bullets, paraffin, and perforation burrs, so as to make all downhole tools get unblocked.

Specification Series and Performance Parameters

TYPE	I.D. in (mm)	Tool Joint Connection API	Overall length ft-in (mm)	I.D of suitable casing in(mm)
GGQ114	1 (25.4)	2-3/8REG	3' (906)	3-13/16~4-3/32 (97.2~103.9)
GGQ127	1 (25.4)	NC23	3'3" (1,000)	4-1/4~4-9/16 (108.6~115.8)
GGQ140	1 (25.4)	NC26	3'3" (1,000)	4-5/8~4-15/16 (118.6~125.7)
GGQ178	1-3/16 (30.0)	3-1/2REG	3'8" (1,105)	6~6-3/8 (154.8~161.7)
GGQ245	2-1/4 (57.0)	4-1/2REG	4'5" (1,340)	8-1/2~8-7/8 (216.8~226.6)
GGQ340	3-1/2 (88.9)	6-5/8REG	4'11" (1,500)	12-3/6~12-3/4 (315.3~323.0)

Casing Scraper Type GGQ

The casing scraper type GGQ is an internal tool used for removing obstructions or foreign material from inside the walls of casing, such as cement, rust, mud, bullets, paraffin, and perforation burrs, so as to make all downhole tools get unblocked.

Specification Series and Performance Parameters

TYPE	I.D. in (mm)	Tool Joint Connection API	Overall length ft-in (mm)	I.D of suitable casing in(mm)
GGQ114	1 (25.4)	2-3/8REG	3' (906)	3-13/16~4-3/32 (97.2~103.9)
GGQ127	1 (25.4)	NC23	3'3" (1,000)	4-1/4~4-9/16 (108.6~115.8)
GGQ140	1 (25.4)	NC26	3'3" (1,000)	4-5/8~4-15/16 (118.6~125.7)
GGQ178	1-3/16 (30.0)	3-1/2REG	3'8" (1,105)	6~6-3/8 (154.8~161.7)
GGQ245	2-1/4 (57.0)	4-1/2REG	4'5" (1,340)	8-1/2~8-7/8 (216.8~226.6)
GGQ340	3-1/2 (88.9)	6-5/8REG	4'11" (1,500)	12-3/6~12-3/4 (315.3~323.0)

http://www.oil-equipment-china.com/pid11499514/Casing+Scraper+Type+GGQ.htm

Fishing Magnet Type CL

The fishing magnet type CL is an external tool designed to retrieve small metal objects , such as milling shavings,bit cones, cutters, bearings, slips, tong pins, and hand tools by its permanent magnet from the bottom of the well so as to make fishing effective and purify the bottom of well. The generous circulation ports, combined with powerful magnetic properties, ensure high-performance junk retrieval.

Specification Series and Performance Parameter

TYPE	O.D. mm (in.)	Connection API	Magnetizing Weight Kg/cm2	Suitable Well Temperature ℃	Suitable Well Diameter mm (in.)
CL86	86 (3 3/8)	NC23	7.7	210	φ95～φ110 (3 3/4~4 5/16)
CL100	100 (3 15/16)	NC23	9.5	210	φ110～φ135 (4 5/16~5 5/16)
CL125	125 (4 15/16)	NC38	9.8	210	φ135～φ165 (5 5/16~6 1/2)
CL140	140 (5 1/2)	NC 38	7.8	210	φ150～φ175 (5 7/8~6 7/8)
CL146	146 (5 3/4)	NC 38	8.5	210	φ160～φ185 (6 5/16~7 5/16)
CL150	150 (5 7/8)	NC38	8.5	210	φ160～φ185 (6 5/16~7 5/16)
CL175	175 (6 7/8)	NC 50	7.9	210	φ185～φ210 (7 5/16~8 1/4)
CL178	178 (7)	NC 50	7.8	210	φ185～φ210 (7 5/16~8 1/4)
CL190	190 (7 1/2)	NC50	7.8	210	φ200～φ225 (7 7/8~8 7/8)
CL200	200 (7 7/8)	NC50	7.6	210	φ210～φ235 (8 1/4~9 1/4)
CL203	203 (8)	NC50	7.6	210	φ215～φ240 (8 7/16~9 7/16)
CL225	225 (8 7/8)	6 5/8REG	7.5	210	φ235～φ270 (9 1/4~10 5/8)
CL254	254 (10)	6 5/8REG	7.0	210	φ265～φ311 (10 7/16~12 1/4)
CL265	265 (10 7/16)	6 5/8REG	6.9	210	φ275～φ330 (10 13/16~13)
CL292	292 (11 1/2)	6 5/8REG	6.9	210	φ300～φ442 (11 13/16~17 3/8)