Impression Blocks

Impression Block is an effective tool used to determine dimensions, configuration, condition, and location of the top end of a fish in the hole.

Parameter of Impression Blocks

Impression Block is an effective tool used to determine dimensions, configuration, condition, and location of the top end of a fish in the hole.

Construction

TIANHE Impression Blocks are manufactured with a high strength alloy steel body and a soft lead insert at the lower end. All impression blocks are provided with a watercourse for flushing the top of the fish before lowering the tool against it. Impression blocks without a watercourse can be furnished upon request.

Operation

Make up the impression block to the bottom of the fishing string and run into the hole. Do not rotate. Slowly lower the impression block to the point of contact with the fish. Apply weight to the impression block and lift it from the hole.

When ordering, please specify:

  • Complete assembly or part number
  • Top connection
  • Lead O.D.

Specifications – Impression Blocks

Specification Thread Connection I.D. of lead die Length(mm) Total length
O.D. Thread Mode(in)
270 203 6 5/8REG 40 150 450
225 165 4 1/2IF 40 130 400
195 159 4IF 30 120 350
170 121 3 1/2IF 30 120 300
120 108 2 7/8IF 20 100 300
100 89 2 1/2ZG 20 100 250

Want to Know More Detail About This Drilling Equipment?

Scroll to Top

Request A Quote

We will contact you within 24 hours after receiving your inquiry.