صائد الكرة /صائد الكور

هي كرات يتم إنزالها داخل البئر لتفعيل أداة أو معدة ما
ball that is dropped or pumped through the wellbore tubulars to activate a downhole tool or device. When the ball is located on a landing seat, hydraulic pressure generally is applied to operate the tool mechanism.

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Note added at 31 mins (2023-01-05 13:29:10 GMT)
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ball catcher
https://glossary.slb.com/en/Terms/b/ball_catcher.aspx
1. n. [Well Completions]

A downhole device or assembly used to catch and retain balls used to actuate ball-operated tools or equipment. Following activation, some ball-operated tools incorporate a means of ejecting the activation ball to regain a fullbore flow path. In such cases, the ball can be retained in a ball catcher.

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Note added at 34 mins (2023-01-05 13:31:53 GMT)
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https://patents.google.com/patent/US20080314584A1/en

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Note added at 50 mins (2023-01-05 13:48:10 GMT)
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وأيضا
معدة صيد الكرات

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Note added at 1 hr (2023-01-05 14:00:30 GMT)
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هناك ترجمات مرادفة أخرى
لاقط / ماسك الكرة
معدة التقاط/الامساك بالكرات