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【LUHAI Petroleum】 Stock Code:832799
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Technical Parameters
 

The Casing scraper is ideal tool for the removal of dirties which may be left inside wall of casing, such as solid cement, hard wax, various salt crystals or deposits and rusting to ensure that all downhole tools pass through unblocked. The use of the casing scraper can increase and complete the success rate.At present scrapping inside wall of casing with scraper has become necessary in many leading oilfields of China.

Construction

According to its structure, it can be divided into rubber barrel type and spring type. The spring casing scraper consists of shell, cutting board, cutting board seat, fixed block, spiral spring, inner hexagon screw and so on. The shell with a waterhole from top to bottom bears all the parts. Its thread within the upper end and lower end connect with drill pipe and drill bit, the six big square grooves will be selected in the large part of the diameter, each of them will be produced into dovetail groove and little square grooves with which the cutting board, cutting board seat, fixed block will be equipped.

 

Spcification of Casing Scraper

 

Type

OD of body

Max. O.D of

cutter blade

Min. O.D of

cutter blade

Connection

Waterhole

Scraping Casing

GX-T114

90

107

94

NC25

15

4-1/2

GX-T127

100

120

104

NC26

20

5

GX-T140

110

133

115

NC31

25

5-1/2

GX-T168

130

162

138

NC38 or 31/2REG

25

6 5/8

GX-T178

140

170

146

NC38 or 31/2REG

30

7

GX-T219

170

212

186

NC50 or 41/2REG

30

8 5/8

GX-T245

200

238

210

4 1/2REG

56

9-5/8

GX-T273

228

268

240

6 5/8REG

56

10 3/4

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